Refrigerator

ABSTRACT

According to one aspect, there is provided a refrigerator including a refrigerating chamber formed at a relatively upper portion of a refrigerator body and a freezing chamber formed at a relatively lower portion of the refrigerator body, which comprises an ice-making chamber which is partitioned in the refrigerating chamber by insulating walls and includes an icemaker for making ice and an ice storage for storing the ice made in the icemaker. The temperature in the refrigerating chamber can be accurately controlled, the loss of cold air can be minimized and the structures for supplying water into the icemaker and the dispenser can be simplified.

TECHNICAL FIELD

The present invention relates to a refrigerator, and more particularly,to a refrigerator wherein a refrigerating chamber is provided at arelatively upper portion thereof, a freezing chamber is provided at arelatively lower portion thereof, and a structure for making ice is alsoprovided in the refrigerating chamber.

BACKGROUND ART

FIG. 1 shows the configuration of a side-by-side refrigerator in which arefrigerating chamber and a freezing chamber are provided to standtogether side by side. Referring to this figure, a refrigerator body 100includes the freezing and refrigerating chambers which are open toward afront direction and stand together side by side. The refrigerating andfreezing chambers are opened and closed by a door 102 of the freezingchamber and a door 104 of the refrigerating chamber, respectively. Thedoors 102 and 104 are pivotally supported by hinges 102′ and 104′provided at upper and lower ends of both lateral sides of therefrigerator body 100, respectively.

An icemaker 106 is provided in the freezing chamber, and a water tank108 is provided in the refrigerating chamber. Water supplied to theicemaker 106 and water tank 108 is beforehand purified by means of afilter 110. The water is supplied from an external water source Ws tothe icemaker and water tank through the filter 110.

Further, a dispenser 112 is provided on a front surface of the door 102of the freezing chamber. The dispenser 112 allows a user to drink thewater supplied from the water tank 108 without opening the door.

Here, the supply of water into the refrigerator body 100 is made througha plurality of supply tubes 110′, 106′, 108′ and 112′ and valves 110 vand 106 v. The water is supplied to the dispenser 112 through the supplytube 112′ that penetrates through the lower hinge 102′.

However, the aforementioned related art refrigerator has the followingproblems.

Since the icemaker 106 is provided in the freezing chamber and the watertank 108 is provided in the refrigerating chamber while the dispenser112 that receives water from the water tank 108 is installed on the door102 of the freezing chamber, the supply tubes 110′, 106′, 108′ and 112′for supplying the icemaker, the water tank and the dispenser with thewater are installed in the refrigerator body 100 in a complicatedmanner. Therefore, since the total length of supply tubes 110′, 106′,108′ and 112′ are increased, there is a problem in that themanufacturing cost thereof are increased and the manufacturing processis also complicated.

Further, since the icemaker 106 is provided in the refrigeratingchamber, there is also another problem in that the supply tube 106′ maybe frozen at an interval where it penetrates through the freezingchamber. To solve this problem, an additional heater should be used inthe supply tube 106′. However, the manufacturing cost and powerconsumption of the refrigerator are increased due to the use of anadditional heater.

Since the icemaker 106 should be placed in a low-temperature environmentwhere ice can be made, it is generally installed in the freeing chamber.In some design conditions, however, there is a limitation on theinstallation of the icemaker 106 depending on where the freezing chambershould be disposed. For example, if the dispenser is installed on afront surface of the door of the freezing chamber in a case where thefreezing chamber is formed at a relatively lower portion of therefrigerator body, it is very inconvenient of a general user to take theice from the dispenser.

On the other hand, if the icemaker is installed in the freezing chamberin a case where the freezing chamber is formed at the lower portion ofthe refrigerator body and the refrigerating chamber is formed at anupper portion of the refrigerator body as mentioned above, there is afurther problem in that it is difficult to control the temperature ofthe refrigerating chamber or the ice-making capability of the icemakeris lowered.

In addition, in a case where a single door 102 or 104 is used to openand close the freeing or refrigerating chamber of the refrigerator body100, there is a further problem in that the loss of cold air from thechamber is increased. In particular, since the size of the refrigeratorhas been recently tending to increase, the loss of cold air becomesrelatively larger.

DISCLOSURE OF INVENTION

Accordingly, the present invention is conceived to solve theaforementioned problems in the prior art. An object of the presentinvention is to provide a refrigerator wherein an icemaker is providedin a refrigerating chamber formed at an upper portion of a refrigeratorbody.

Another object of the present invention is to provide a refrigeratorwherein the loss of cold air from a storage space can be minimized whenthe storage space is opened and closed.

A further object of the present invention is to provide a refrigeratorincluding an icemaker and dispenser wherein a structure for feedingwater can be simplified.

According to an aspect of the present invention for achieving theobject, there is provided a refrigerator including a refrigeratingchamber formed at a relatively upper portion of a refrigerator body anda freezing chamber formed at a relatively lower portion of therefrigerator body, which comprises an ice-making chamber portioned inthe refrigerating chamber by means of insulating walls and including anicemaker for making ice and an ice storage for storing the ice made inthe icemaker, one or more heat exchangers serving as components of aheat exchange cycle for generating cold air to regulate temperatures inthe refrigerating and freezing chambers, and a dispenser communicatingwith the ice storage and installed on a door.

Preferably, a first heat exchanger is provided in the ice-making chamberand a second heat exchanger is provided in the freeing chamber.

The second heat exchanger may be provided in a heat exchange chamberseparately partitioned at a rear portion of the freezing chamber andcommunicate with the freezing and refrigerating chambers.

Preferably, a blow fan for sending the cold air generated in the secondheat exchanger to the freezing and refrigerating chambers is furtherprovided in the heat exchange chamber.

The ice-making chamber may be detachably installed in the refrigeratingchamber.

The refrigerating chamber may be opened and closed by a pair of doorsthat are pivotally supported on hinges provided at upper and lower endsof both lateral sides of the refrigerator body.

The ice-making chamber maybe provided at one side of the door.

The doors of the refrigerating chamber may have widths different fromeach other.

Preferably, gaskets are provided at free tip ends of the doors of therefrigerating chamber such that they are brought into close contact witheach other when the doors are closed.

The dispenser that is provided on a front surface of the door of therefrigerating chamber may be supplied with water from a water tankinstalled in the refrigerating chamber.

The water tank may be installed at an inner side of the refrigeratorbody or the door of the refrigerating chamber.

The water supplied from an external water source may be delivered intothe water tank and the icemaker of the ice-making chamber through afilter, and tubes for feeding the water and valves for regulating flowof the water may be provided between the water source and the filter,between the filter and the water tank, and between the filter and theicemaker.

According to another aspect of the present invention, there is provideda refrigerator, which comprises a refrigerator body that includescomponents of a heat exchange cycle, a refrigerating chamber that isformed at a relatively upper portion of the refrigerator body, afreezing chamber that is formed at a relatively lower portion of therefrigerator body, a pair of doors that is connected at both lateralends of the refrigerator body corresponding to the refrigerating chamberto open and close the refrigerating chamber, a door for selectivelyopening and closing a front face of the freezing chamber, and storageunits for storing articles therein that are provided in therefrigerating chamber and have the same widths as the width of doors ofthe refrigerating chamber.

The pair of doors of the refrigerating chamber may have the same widthsas each other, and gaskets may be provided on surfaces of opposite freeends of the doors such that they are brought into close contact witheach other.

The pair of doors of the refrigerating chamber may have the differentwidths from each other, and gaskets may be provided on surfaces ofopposite free ends of the doors such that they are brought into closecontact with each other.

Preferably, an ice-making chamber, which includes an icemaker for makingice and an ice storage for storing the ice made in the icemaker and ispartitioned as an individual space by means of insulating walls, isfurther provided in the refrigerating chamber.

The ice-making chamber may be detachably installed in the refrigeratingchamber.

Preferably, a dispenser is further provided on a front surface of thedoor of the refrigerating chamber and is supplied with water from awater tank installed in the refrigerating chamber.

The water tank may be installed at an inner side of the refrigeratorbody or the door of the refrigerating chamber.

The water supplied from an external water source may be delivered intothe water tank and the icemaker of the ice-making chamber through afilter. Further, tubes for feeding the water and valves for regulatingflow of the water are preferably provided between the water source andthe filter, between the filter and the water tank, and between thefilter and the icemaker.

The door of the freezing chamber may be opened and closes in the samemanner as a drawer.

According to a further aspect of the present invention, there isprovided a refrigerator, which comprises a refrigerator body thatincludes components of a heat exchange cycle, a refrigerating chamberthat is formed at a relatively upper portion of the refrigerator body, afreezing chamber that is formed at a relatively lower portion of therefrigerator body, a pair of doors that are connected at both lateralends of the refrigerator body corresponding to the refrigerating chamberto open and close the refrigerating chamber, a door for selectivelyopening and closing a front face of the freezing chamber, an ice-makingchamber that is partitioned as an individual space within therefrigerating chamber by means of insulating walls and includes anicemaker for making ice and an ice storage for storing the ice made inthe icemaker, a first heat exchanger for generating cold air to regulatetemperature in the ice-making chamber, and a second heat exchanger forgenerating cold air to regulate temperatures in the freezing andrefrigerating chambers, wherein the first and second heat exchangers arecomponents of the heat exchange cycle.

The pair of doors of the refrigerating chamber may have the same widthsas each other. Preferably, gaskets are also preferably provided onsurfaces of opposite free ends of the doors such that they are broughtinto close contact with each other, and storage units for storingarticles therein are provided in the refrigerating chamber such thatthey have the same widths as the width of doors of the refrigeratingchamber.

The pair of doors of the refrigerating chamber may have the differentwidths from each other. Preferably, gaskets are also provided onsurfaces of opposite free ends of the doors such that they are broughtinto close contact with each other, and storage units for storingarticles therein are provided in the refrigerating chamber such thatthey have the same widths as the width of doors of the refrigeratingchamber.

Preferably, a dispenser is further provided on a front surface of thedoor of the refrigerating chamber and is supplied with water from awater tank installed in the refrigerating chamber.

The water rank may be installed at an inner side of the refrigeratorbody or the door of the refrigerating chamber.

The water that is supplied from an external water source may bedelivered into the water tank and the icemaker of the ice-making chamberthrough a filter. Preferably, tubes for feeding the water and valves forregulating flow of the water are provided between the water source andthe filter, between the filter and the water tank, and between thefilter and the icemaker, and the tubes for feeding the water areprovided on the door and the refrigerator body corresponding to therefrigerating chamber.

According to a still further aspect of the present invention, there isprovided a refrigerator including a refrigerating chamber formed at arelatively upper portion of a refrigerator body and a freezing chamberformed at a relatively lower portion of the refrigerator body, whichcomprises an ice-making chamber that is portioned in the refrigeratingchamber by means of insulating walls and includes an icemaker for makingice and an ice storage for storing the ice made in the icemaker, a doorof the refrigerating chamber that opens and closes the refrigeratingchamber and is formed with a dispenser installed at a front surfacethereof, a water tank that is installed in the refrigerating chamber tostore water supplied from a water source to the dispenser, a means forfeeling water supplied from the water source into the dispenser, whichis provided on the refrigerator body corresponding to the refrigeratingchamber, and a means for feeding water supplied from the water sourceinto the icemaker, which is provided on the refrigerator bodycorresponding to the refrigerating chamber.

The means for feeding water into the dispenser may include a filter forpurifying water supplied from the water source; a tank tube fordelivering water running from the filter to the water tank; a dispensertube for delivering water from the water tank to the dispenser, andvalves that are provided between the water source and the filter andbetween the filter and the dispenser to regulate flow of the water.

The means for feeding water into the icemaker may include a filter forpurifying water supplied from the water source; an icemaker tube fordelivering water running from the filter to the icemaker, and valvesthat are provided between the water source and the filter and betweenthe filter and the icemaker to regulate flow of the water.

Preferably, the refrigerating chamber is opened and closed by at least apair of doors of the refrigerating chamber having the same widths aseach other.

Preferably, the refrigerating chamber is opened and closed by at least apair of doors of the refrigerating chamber having different widths fromeach other.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a front view showing the configuration of a related artrefrigerator.

FIG. 2 is a front view showing the configuration of a first embodimentof a refrigerator according to the present invention.

FIG. 3 is a sectional view showing the configuration of the firstembodiment of the refrigerator according to the present invention shownin FIG. 2.

FIG. 4 is a front view showing the configuration of a refrigeratoraccording to the present invention.

FIG. 5 is a front view showing the internal configuration of the secondembodiment of the refrigerator shown in FIG. 4 in a state where doors ofa refrigerating chamber is opened and doors of a freezing chamber isremoved.

FIG. 6 is a front view showing the structure for supplying a dispenserand icemaker with water according to the embodiment of the presentinvention.

FIG. 7 is a view showing another example of the structure for supplyinga dispenser and icemaker with water according to the embodiment of thepresent invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of a refrigerator according to thepresent invention will be described in detail with reference to theaccompanying drawings.

FIG. 2 shows a front view of an external appearance of a fist embodimentof a refrigerator according to the present invention, and FIG. 3 shows asectional view of the internal configuration of the first embodiment ofthe refrigerator according to the present invention.

Referring to these figures, a storage space such as a refrigeratingchamber 3 and a freezing chamber 5 is formed in a refrigerator body 1.The refrigerating chamber 3 is formed at a relatively upper portion ofthe refrigerator body 1, while the freezing chamber 5 is formed at arelatively lower portion of the refrigerator body 1. The refrigeratorbody 1 is vertically partitioned into the refrigerating and freezingchambers 3 and 5 by means of a barrier 4.

The refrigerating and freezing chambers 3 and 5 are formed to be opentoward a front face of the refrigerator body 1, and their openedportions are opened and closed by doors 7, 8 and 9. In particular, therefrigerating chamber 3 is opened and closed by a pair of doors 7 and 8.The doors 7 and 8 of the refrigerating chamber are pivotally supportedon hinges (not shown) that are installed at upper and lower ends of bothlateral sides on the front face of the refrigerator body 1,respectively. That is, the doors 7 and 8 are configured such that theirfree ends, i.e. tip ends, which are adjacent to each other, arepositioned in the middle of the refrigerating chamber 3 in a horizontaldirection when the doors 7 and 8 are closed. The doors 7 and 8 of therefrigerating chamber selectively open and close right and left halvesof the refrigerating chamber 3 corresponding to a single storage space.

Door handles 7 a and 8 a are provided on tip ends on front surfaces ofthe doors 7 and 8 of the refrigerating chamber, respectively. The doorhandles 7 a and 8 a correspond to parts that a user grips to exert apredetermined force thereon when intending to open and close the doors 7and 8. A door handle 9 a is also provided on an upper end on a frontsurface of the door 9 of the freezing chamber. For reference, the door 9of the freezing chamber is configured such that it can be slid in andout in the same manner as a drawer.

Furthermore, an ice-making chamber 20 is installed at upper side of therefrigerating chamber 3. The ice-making chamber 20 is partitioned bymeans of insulating walls 22, because the temperature in the ice-makingchamber 20 should be kept to be remarkably lower as compared to that inthe refrigerating chamber 3. The insulating walls 22 are formed tocompletely wrap up the ice-making chamber 20 and includes an insulatingmaterial composed of polyurethane, Styrofoam or the like.

An icemaker 24 in which ice is actually made is provided in theice-making chamber 20. Any kinds of icemakers may be used as theicemaker 24 if they can store the supplied water into an ice-making trayand freeze the water with using a low temperature in the ice-makingchamber 20. Ice storage 26 is provided below the icemaker 24. The icestorage 26 is a part in which ice made in the icemaker 24 can be stored.The ice made in the icemaker 24 can be delivered to the ice storage 26in various manners.

The ice storage 26 temporarily stores the ice delivered from theicemaker 24, and the ice stored in the ice storage 26 is transported bya mechanism for delivering the ice (e.g., screw wires capable of movingthe ice by means of their rotation). The ice storage 26 in communicationwith an ice discharge duct 28 that penetrates through the insulatingducts 22, and the ice discharge duct 28 is selectively opened and closedsuch that the ice can be transferred to a dispenser 29 provided on thefront surface of the door 7. The ice discharge duct 28 is formed on thedoor 7 such that it communicates outwardly with the dispenser 29 andinwardly with ice storage 26 through insulating walls 22 of theice-making chamber 20.

The dispenser 29 allows a user to take water and ice without opening andclosing the door 7. The dispenser 29 is provided with a structure fortaking the water and ice from the dispenser. For example, an operatinglever or button, which receives a signal for opening and closing adispensing port through which water or ice is discharged, is exposed orprovided on the front surface of the door 7. That is, the dispensingport is opened by the operating lever or button, whereby the water orice is discharged to the outside.

A separate evaporator 32 is installed within the ice-making chamber 20.The evaporator 32 is installed to allow the ice-making chamber 20 to becool down (to a low temperature where water stored in the ice-makingchamber can be frozen) by performing heat exchange between ambient airin the ice-making chamber and coolant that is changed to alow-temperature and low-pressure state and then introduced into theice-making chamber by means of a compressor 42 and a condenser (notshown) installed within a machine room 40 formed at a lower rear portionof the refrigerator body 1.

In addition, a blow fan 34 may also be installed such that cold airproduced by the contact with evaporator 32 can be transferred morequickly into the ice-making chamber 20. Any kinds of evaporator can alsobe used if the evaporator 32 is able to produce low-temperature airthrough the heat exchange with the ambient air. For example, anevaporator to which direct cooling mode can be applied without using theblow fan 34 may also be used.

Next, the structure for supplying cold air to the refrigerating andfreezing chambers 3 and 5 formed in the refrigerator body 1 will bedescribed. A separate heat exchange chamber 45 is formed in a rearportion of the freezing chamber 5 of the refrigerator body 1. Anevaporator 46 and a blow fan 47 are provided in the heat exchangechamber 45. The evaporator 46 produces cold air by using alow-temperature and low-pressure liquid coolant that is supplied fromthe compressor 42 and the condenser (not shown) installed within themachine room 40. The blow fan 47 serves to provide the refrigerating andfreezing chambers 3 and 5 with the cold air produced in the evaporator46.

A portion of the cold air produced in the heat exchange chamber 45 isdirectly supplied to the freezing chamber 5 my means of the blow fan 47.The other portion of the cold air is supplied to the refrigeratingchamber 3. To this end, cold air supply and return ducts 48 and 49 areformed to pass through the insulating walls of the refrigerator body 1.The ducts 48 and 49 allow the heat exchange chamber 45 and therefrigerating chamber 3 to communicate with each other. The ducts 48 and49 are provided on a rear side and/or a rear wall surface of the barer4.

FIGS. 4 and 5 show a second embodiment of the present invention. In thisembodiment, doors 7′ and 8′ for opening and closing the refrigeratingchamber 3 corresponding to the storage space formed in the refrigeratorbody 1 are formed to have sizes different from each other, as shown inthese figures. That is, the width of the left door 7′ is smaller thanthat of the right door 8′, as viewed from these figures.

This is because only a necessary portion of the increased refrigeratingchamber 3 are opened to take foodstuffs in and out from therefrigerating chamber in accordance with the tendency of the size ofrefrigerators to increase. Of course, even though the two doors 7 and 8having the same width as in the previous embodiment are used, an openedportion of the refrigerator maybe reduced when if a single door 7 or 8is opened. If the doors 7′ and 8′ having the different width are used asin this embodiment, however, the unnecessary loss of cold air can berelatively further reduced.

Furthermore, when the doors 7′ and 8′ having the different width areemployed, the inner structure of the refrigerating chamber 3 ispreferably designed to be in harmony with the doors 7′ and 8′. That is,a plurality of shelves 10 for the efficient use of the storage space areinstalled within the refrigerating chamber 3. The refrigerating chamber3 is vertically partitioned by the shelves 10 on which foodstuffs can beplaced and stored.

In addition, a plurality of drawer boxes 12 and 12′ are provided in therefrigerating chamber 3. The drawer boxes 12 and 12′ in which thefoodstuffs can be stored is installed within the refrigerating chamber3, but their interiors are completely separated from the refrigeratingchamber 3. The widths of the drawer boxes 12 and 12′ are determined inaccordance with the widths of the doors 7′ and 8′, respectively. This isbecause when any one of the doors 7′ and 8′ is opened, the drawer box 12or 12′ corresponding to the opened door 7′ or 8′ can be pulled outwithout interfering with the closed door.

In the meantime, when the doors 7′ and 8′ are closed, gaskets 7 g and 8g are preferably installed on opposite sides of the doors. The gaskets 7g and 8 g are designed to have a length corresponding to a verticallength, i.e. a height, of the doors 7′ and 8′. Accordingly, when thedoors 7′ and 8′ are completely closed, the gaskets 7 g and 8 g arebrought into close contact with each other. Therefore, the gaskets 7 gand 8 g can prevent the cold air from leaking out through the tip endsof the doors 7′ and 8′. These gaskets may also be applied to theprevious embodiment of the present invention.

Next, the structure for supplying water to the dispenser and theicemaker according to the present invention will be described withreference to FIG. 6. The water supplied from a water source isintroduced into the refrigerator body 1 and supplied to a filter 52through a supply tube 50. The supply tube 50 is provided with a valve50V for regulating the supply of water to the refrigerator body 1.

The filter 52 is to purify water supplied therein. The water purified inthe filter 52 is transferred to the icemaker 24 and a water tank 56through an icemaker tube 54 and a tank tube 55, respectively. Theicemaker tube and tank tubes 54 and 55 are provided with valves 54V and55V, respectively. Of course, the water may be supplied in such a mannerthat a single tube stems from the filter 52 and the icemaker tube 54 andthe tank tube 55 are branched off through a single valve.

The water tank 56 serves to supply water to the dispenser 29 whilecausing a constant amount of water to be kept at the same state as in &erefrigerating chamber. The water tank 56 is connected to the dispenser29 through a dispenser tube 58 to supply the water to the dispenser 29.The dispenser tube 58 is installed to penetrate through a lower hinge ofthe door 7′ of the refrigerating chamber.

In this embodiment, since the water tank 56 is installed at a portion inthe refrigerating chamber 3 and directly connected to the door 7′, thewater discharged from the dispenser 29 can be always kept at arefrigerating temperature.

Here, the tubes 54, 55 and 58 are preferably embedded into a rear sideof an inner case or an insulating material of the walls of therefrigerating chamber 3 so that they are not exposed to the interior ofthe refrigerating chamber 3.

Next, a further embodiment of supplying water to the dispenser andicemaker will be described with reference to FIG. 7. In this embodiment,a supply tube 50 is connected from the water source to the refrigeratorbody 1. A filter 52 is installed on the refrigerator body 1 andconnected to the supply tube 50. The filter 52 is to purify watersupplied therein. The supply tube 50 is provided with a valve 50V forregulating the supply of water to the filter 52.

An icemaker tube 54′ connects the filter 52 and the icemaker 24 witheach other and includes a valve 54V. The water is supplied to theicemaker 24 though the icemaker tube 54′. A tank tube 55′ should bebranched off from the icemaker tube 54′ between the valve 54V and thefilter 52. The tank tube 55′ supplies water to a water tank 56′ to beexplained later and is also provided with a valve 55V. Of course, toregulate the water to be supplied to the icemaker tube 54′ and tank tube55′, a single valve may be used at a portion where the tubes 54′ and 55′are branched off.

The water tank 56′ is provided on the door 7′ of the refrigeratingchamber on which the dispenser 29 is installed. The water tank 56′serves to temporarily store the water purified in the filter 52 and thensupply the stored water to the dispenser 29. Since the water tank 56′ isinstalled on the door 7′ of the refrigerating chamber, the tank tube 55′is connected to the door 7′ while penetrating though an upper hinge ofthe door 7′. The water tank 56′ and the dispenser 29, both of which areprovided on the door 7′ of the refrigerating chamber, are connected witheach other through a dispenser tube 58.

Hereinafter, the operation of the refrigerator according to the presentinvention configured as above will be described in detail.

First, it is explained how the refrigerator of the present invention isoperated. When the refrigerator is driven, a heat exchange cycleincluding the compressor 42 and the evaporator 46 provided in themachine chamber 40 is operated and cold air is then produced. The coldair is supplied to the freezing and refrigerating chambers 5 and 3 bymeans of the blow fan 47. The cold air supplied to the freezing chamber5 circulates in the freezing chamber and is then returned to the heatexchange chamber 45. The cold air is supplied into the refrigeratingchamber 3 through the cold air supply duct 48 and is returned to theheat exchange chamber 45 through the return duct 49 after circulating inthe refrigerating chamber 3.

Further, cold air is supplied to the icemaker 24 from the evaporator 32separately provided in the ice-making chamber 20. Since the ice-makingchamber 20 is separated from the refrigerating chamber 3 by means of theinsulating walls 22, there is no flow of the cold air between theice-making chamber and the refrigerating chamber. To supply the cold airto the ice-making chamber 20, the heat exchange cycle including theevaporator 32 and the compressor 42 in the machine room 40 should beoperated. The cold air formed in the evaporator 32 is delivered into theice-making chamber 20 by means of the blow fan 34 such that ice is madein the icemaker 24.

Here, the ice-making chamber 20 is separated from the refrigeratingchamber 3 by means of the insulating walls 22 and supplied with the coldair from the additional evaporator 32 other than the evaporator for usein the refrigerating and freezing chambers 3 and 5. Therefore, thetemperatures in the refrigerating chamber 3 and ice-making chamber 20are controlled separately from each other.

For reference, the ice-making chamber 20 corresponds to a spaceseparated from the refrigerating chamber by means of the insulatingwalls 22. Therefore, various modifications or changes on the shapes ofthe insulating walls 22 can be made within the technical scope in whichthey can substantially define an additional ice-making space in therefrigerating chamber 3.

That is, the ice-making chamber 20 itself may be configured to bedetachably installed in the refrigerating chamber 3. More specifically,the insulating walls 22 can be configured in the form of a box so as toconstruct the ice-making chamber 20. The present invention can beimplemented by detachably installing the ice-making chamber 20 in therefrigerating chamber 3.

Accordingly, the internal space of the refrigerating chamber can besubstantially utilized more effectively by detachably installing theindividually formed ice-making chamber 20 into the refrigerating chamber3 (for example, in the manufacturing line of the refrigerator). Further,if the ice-making chamber 20 is detachably configured, it can becontemplated that the ice-making chamber 20 is integrally formed withthe icemaker, evaporator and the like.

Next, in the present invention, the refrigerating chamber 3 is openedand closed by the two doors 7, 8 or 7′, 8′. Such a configuration canminimize the loss of cold air in accordance with the tendency of thesize of refrigerators to increase. As the size of refrigerator isincreased, the volume of refrigerator is also increased. In particular,since the ice-making chamber 20 is installed in the refrigeratingchamber 3, the volume thereof can be relatively enlarged.

Therefore, a pair of doors 7, 8 or 7′, 8′ are configured to open andclose the refrigerating chamber 3. That is, when a user wishes to takethe foodstuffs in and out from a desired region of the refrigeratingchamber 3, only one of the two doors 7, 8 or 7′, 8′ corresponding to thedesired region can be opened and closed, thereby minimizing the loss ofcold air from the refrigerating chamber. In particular, the loss of coldair can be further reduced by constructing the doors 7′ and 8′ havingthe different width, as shown in FIG. 4. To this end, the narrower door7′ may be installed at a region of the refrigerating chamber which isfrequently opened and closed, or the user can intentionally store thefoodstuffs, which are more frequently taken in and out, in a storagespace where the narrower door 7′ is installed.

As well shown in FIG. 5, the drawer boxes 12 and 12′ used in therefrigerating chamber 3 are manufactured to have predetermined widthscorresponding to those of the doors 7′ and 8′. Accordingly, thefoodstuffs can be taken in and out form the drawer boxes in a statewhere only a single door is opened.

On the other hand, according to the present invention, the freezingchamber 5 is located at a lower portion of the refrigerator, and thedoor 9 is slid in and out in the same manner as a drawer. Therefore, theuser can open the freezing chamber by forwardly pulling the door andeasily find out the contents stored in the freezing chamber from above.

Next, it is explained how water is supplied to the icemaker 24 and thedispenser 29. When the water is required in the icemaker 24 or thedispenser 29 (more specifically, water tank 56), the water is suppliedfrom the water source to the refrigerator body 1. That is, the valve 50Vis opened and the water is then supplied to the filter 52 from the watersource. The water purified in the filter 52 is delivered into theicemaker 24 and the water tank 56, respectively, because the valves 54Vand 55V have been already opened. At this time, the water flowing outfrom the filter 52 is supplied to the icemaker 24 through the icemakertube 54 or 54′ and to the water tank 56 through the tank tube 55 or 55′.

The water supplied to the icemaker 24 is converted into ice, and the iceis then delivered into the ice storage 26. The ice can be automaticallyor manually delivered from the icemaker 24 into the ice storage 26. Theice stored in the ice storage 26 can be discharged to the outside byoperating the dispenser 29.

That is, if the user inputs instructions to discharge the ice to thedispenser 29, the ice discharge duct 28 is opened, and the ice stored inthe ice storage 26 is delivered to the dispenser 29 and then dischargedto the outside through the dispenser 29. The ice stored in the icestorage 26 is transferred from the ice storage 26 to the ice dischargeduct 28 by means of a transport mechanism.

Next, it is explained how the water is supplied into the water tank 56or 56′. When the amount of water to be stored in the water tank 56 or56′ is below a predetermined level, the valve 50V is opened and thewater is supplied from the water source. The water supplied from thewater source to the filter 52 is purified in the filter 52 and thepurified water is then delivered into the water tank 56 or 56′throughthe tank tube 55 or 55′.

Here, since the water tank 56 or 56′ is provided in the refrigeratingchamber 3 of the refrigerator or on the door 7 or 7′ of therefrigerating chamber, the water in the water tank is influenced by thetemperature in the refrigerating chamber 3. That is, since the water inthe water tank is kept at the same temperature in the refrigeratingchamber 3, relatively cold water can be dispensed to the user throughthe dispenser 29.

According to the present invention as described above, the followingadvantages can be expected.

First, since the separately partitioned ice-making chamber is installedin the refrigerating chamber formed at a relatively upper portion of therefrigerator body, the refrigerating chamber is hardly influenced by thetemperature of the ice-making chamber. Therefore, the temperatures inthe ice-making chamber and the refrigerating chamber can be individuallyand accurately controlled. In particular, since the cold air is producedin the ice-making chamber by installing an additional evaporator in theice-making chamber, there are advantages in that ice-making capabilitycan be maximized and the power consumption can also be minimized.

Next, the present invention is configured in such a manner that therefrigerating chamber of which volume is relatively large is opened andclosed by a plurality of doors. Thus, since the foodstuffs can be takenin and out in a state where only a portion of the refrigerating chamberis opened, there is another advantage in that the loss of cold air canbe minimized.

In addition, the present invention is configured in such a manner thatthe doors of the refrigerating chamber are formed to have differentwidths rom each other and the widths of the drawer boxes in therefrigerating chamber correspond to those of the doors. Thus, there is afurther advantage in that the articles can be taken in and out from thedrawer boxes even though only a single door is opened.

Further, since the doors of the refrigerating chamber are divided intotwo, radii of rotation for opening and closing the doors are decreased.Thus, a space in front of the refrigerator needed for opening andclosing the doors are also decreased. Accordingly, a space where therefrigerator is installed can be more efficiently utilized.

Furthermore, since the gaskets are installed at the opposite fir ends ofthe doors of the refrigerating chamber, they can be brought into closecontact with each other when the doors closed. Therefore, there is anadvantage in that the leakage of cold air to the outside can beminimized.

In addition, the present invention is designed such that the tubes forsupplying water to the ice-making chamber and the dispenser are providedonly on the refrigerating chamber side of the refrigerator body.Therefore, since the structure for supplying the water is simplified asa whole, the process of assembling the refrigerator can be simplifiedand the damage of the tubes can also be prevented.

Moreover, the water, which is discharged through the dispenser from thewater tank installed either in the refrigerating chamber or on a rearsurface of the door of the refrigerating chamber, can be always kept atthe same state as in the refrigerating chamber. Further, since the watersupply tubes do not pass through the refrigerating chamber side, theproblems that the water in the tubes is frozen can be solved.

The scope of the present invention is not limited by the illustratedembodiments but defined by the appended claims. It will be apparent thatthose skilled in the art can make various modifications and changeswithin the scope of the invention defined by the claims.

1. A refrigerator comprising: a refrigerator body; a refrigeratingcompartment and a freezing compartment being configured to maintainoperating temperatures that differ, with the freezing compartment havingan operating temperature that is lower than an operating temperature ofthe refrigerating compartment; a refrigerator door configured to openand close at least a portion of the refrigerating compartment; adispenser positioned on the refrigerator door; an ice compartmentlocated in the refrigerating compartment; an ice maker located in theice compartment; an ice storage bin located in the ice compartment, theice storage bin being configured to receive ice made by the ice maker;an ice dispensing passage extending from the ice compartment to thedispenser, the ice dispensing passage including a portion that isconfigured to guide ice to the dispenser according to gravity; and anice transport mechanism located in the ice storage bin and configured tomove ice within the ice storage bin and to move ice along a path fromthe ice storage bin to the portion of the ice dispensing passage that isconfigured to guide ice to the dispenser according to gravity.
 2. Therefrigerator of claim 1 wherein the ice transport mechanism is an auger.3. The refrigerator of claim 1 wherein the ice transport mechanism is ascrew wire.
 4. The refrigerator of claim 1 wherein the ice transportmechanism is the only artificial transport mechanism within therefrigerator configured to impart force on ice to promote movement ofice along the ice flow passage.
 5. The refrigerator of claim 1 whereinthe portion of the ice dispensing passage is configured to guide icefrom the ice compartment to the dispenser based solely on gravitationalforce.
 6. The refrigerator of claim 1 wherein a motor for the icetransport mechanism is located in the ice compartment.
 7. Therefrigerator of claim 1 wherein the horizontal ice transport mechanismextends along a majority of a longest dimension of the ice storage bin.8. The refrigerator of claim 1 wherein the ice dispensing passageinterfaces with an outlet defined in a wall of the ice compartment andthe ice transport mechanism is configured to impart force to promotemovement of ice to the outlet defined in the wall of the ice compartmentand to facilitate movement of the ice into the ice dispensing passage.9. The refrigerator of claim 8 further comprising: a support structureconfigured to interface with a floor surface and to support a majorityof the refrigerator's weight during operation, wherein the outlet isdefined at least partially in a wall of the ice compartment that ispositioned closest to the support structure.
 10. The refrigerator ofclaim 8 wherein: the ice compartment is defined by one or moreinsulating walls, and the outlet is defined at least partially in afront of the insulating walls configured to cover a surface of the icecompartment that is otherwise exposed as a consequence of therefrigerator door being oriented in an open position.
 11. Therefrigerator of claim 10 further comprising: a support structureconfigured to interface with a floor surface and to support a majorityof the refrigerator's weight during operation, wherein the outlet isalso defined at least partially in a wall of the ice compartment that ispositioned closest to the support structure.
 12. The refrigerator ofclaim 1 wherein the dispenser includes a dispensing port located on afront surface of the refrigerator door, the front surface of therefrigerator door being a surface of the refrigerator door facing anexterior of the refrigerator when the refrigerator door is oriented in aclosed position.
 13. The refrigerator of claim 12 wherein the dispenserincludes a dispenser obstruction member movable between a first positionin which the dispensing port is opened and a second position in whichthe dispensing port is closed, the dispensing port being configured toenable ice discharge through the refrigerator door when the dispenserobstruction member is oriented in the first position, the dispensingport being configured to at least partially prevent ice dischargethrough the refrigerator door when the dispenser obstruction member isoriented in the second position that differs from the first position.14. The refrigerator of claim 1 wherein the refrigerator door is a firstrefrigerator door, further comprising a second refrigerator doorconfigured to open and close a portion of the refrigerating compartmentthat is different than the portion of the refrigerating compartment thatthe first refrigerator door is configured to open and close.
 15. Therefrigerator of claim 14 wherein, when the second refrigerator door isoriented in a closed position, the second refrigerator door covers anarea of the refrigerating compartment not covered by the firstrefrigerator door when the first refrigerator door is oriented in aclosed position.
 16. The refrigerator of claim 1 wherein at least aportion of the ice dispensing passage is defined in the refrigeratordoor and the ice dispensing passage is disconnected when therefrigerator door is oriented in an open position.
 17. The refrigeratorof claim 16 wherein the first refrigerator door is shaped to enable theportion of the ice dispensing passage defined in the refrigerator doorto receive ice moved from the ice storage bin when the firstrefrigerator door is oriented in the closed position.
 18. Therefrigerator of claim 17 wherein: the ice compartment is defined by oneor more insulating walls, and the refrigerator door is shaped such thata portion of the refrigerator door extends into the refrigeratingcompartment beyond a front of the insulating walls configured to cover asurface of the ice compartment that is otherwise exposed as aconsequence of the refrigerator door being oriented in an open position.19. The refrigerator of claim 1 further comprising: a cover located inthe ice dispensing passage and configured to selectively open and closethe ice dispensing passage.